Concrete-mixer.



PATENTED JAN. 29, 1907.

LE. KENISELL & 0.0. LOWRY.

CON CRETE MIXER.

APPLIGATION FILED SEPT.18,'1905.

2 SHEETS-SHEET If WITNESSES;

No. 842,206. BATBNTED JAN.29,1907. J. B. KENISELL & a. c. LOWRY.

GONGR ETB MIXER. APPLICATION IILEDIABEPT. 1a, 1905.

2 SHEETS-SHEET 2.

' N 0 s: pi fs xx.

Lil

n'nrrnn STATES PATENT OFFICE.

JOHN E! KENISELL AND CLARENCE C. 'LOWRY, OF DETROIT, MICHIGAN.

'CONGRETE-WHXER.

Specification of Letters Patent.

Patented Jan. 29, 1907.

Application filed September 18, 1905. Serial No. 278.910.

"0 all whom it may concern:

Be it known that We, JoHx E. KEXISELL and CLARENCE C.- Lower, citizensof the United States of America, residing at Detroit, in the county oflVayne and State of Michigan, have invented certain new and which thefollowing is a specification, reference being had therein to theaccompanying drawings. l This invention relates to improvements inmachines for mixing concrete, mortar, or

the purpose which is so constructed that it may be operated either as acontinuous or as a batch mixer and which is provided with certainimprovements in the construction. of its hopper, whereby the labor ofshoveling the material into the same is lessen ed.

It isalso an object of the invention to so construct the mixing andconveying arms that they may be extended as they wear off and when wornout may be quickly repaired 5 y 1 said arms, as shown by the arrows 111Fig. 2, i and forms a blade to divide and stir the inaat a small expenseby substituting a new part for the old one; and a further object is toprovide a device Having the several advantages of the particularconstruction, arrangement, and combination of parts, all as hereinaftermore fully described, and shown in the accompanying'drawings, in whichFigure 1 is a perspective view of a device embodying the invention; Fig.2, a transverse section throughthe trough adjacent to the hopper; Fig 3,a perspective detail of the discharge end of the trough: Fig. 4, aperspective view of one of the mixing-arms, and Fig. 5a similar viewshowing the parts of the arms separated.

As shown in the drawings, 1. is a suitable fi'ame formedof parallelI-beams, which are su 'zorted at their rear ends upon a rear axle 2 andat their forward ends upon a circle 3, secured to the front axle l, saidaxles being rovided with suitable supporting-wheels. pon the forward endof the frame is secured a platform 5, to which-is bolted a motor 6,referably a gasole11e-engine,and extending o1'1gitudin lly of the frameat thegrear of the motor is a cylindrical-shaped trough T,held in placeon the frame by braces Secured to the frame adjacentto the ends of thetrough are the cross-bars 9, provided.

11, in mesh with a pinion 12 on the end of the engine-shaft, and securedto this shaft within the trough are two series of agitating andconveying arms 13, secured on the shaft as to formtwo oppositely-extending spiral rows.

Each of these arms 13 consists of a sleeve porusc -ul- Improvements inConcretedhxers, of

and secured thereto in any suitable manner,

and extending laterally from said sleeve is a shank portion 15, providedwith parallel grooves 16 longitudinally of one of its side I faces.other cementitious material: and its object is I to provide a cheap andefficient device for 17 is a head portion. formed with a shank 18,provided with two parallel rows of teeth 19, extending longitudinally ofand project ing from one side face of said shank to engage'and liewithin the grooves 16, each of which is provided near its outer end witha tooth or rib 20 to engage between the teeth 19 when said shanks aresecured together by a bolt 21, extending through a slot 22 in the shank18 and a hole 23 in the shank 15. One edge 24 of the head 17 extendsforwardly a short distance in'the direction of travel of terial. atthesame time serving as conveyers to force the materlal along the troughtoward its rear or discharge end, said shank 15 being formed on itssleeve at an angle to the path of its rotation, so that the blade isgiven a lead or inclination.

By making the arms in two parts and ad justably securing the sametogether, as described, the same may be lengthened when their outer endshave become worn off, and thus the length of time which they may be usedgreatly increased, and when a head is worn out 'or broken the expense ofrepair or renewal is greatly lessened, as a new head may be quicklysecured in place on the arm without removing the arm from its shaft.

The trough is preferably left open along its top, so thatthe operatormay watch. the operoperated and heldclosed bya hand-lever'26,

IlO

pivoted at one end on the supporting-frame or cross-bar t) and connectedto the door by a link 27, pivoted at one end to the door and at itsopposite end to the lever intermediatethe ends thereol. Alatch 2S,carried'by the handle, is adapted to engage the edge of the end. of the.trough when said handle is in. a position to hold the door closed andsecure said which are hinged. at their lower edges to the upper edges olangle-bars'32, riveted along the upper edges ol' the. trough.vllnwardlyextending llanges 32, are provided on the ends ol these movablehopper sides to engage the inner surlace ol the stathinaryends, andbolts 34 extend through openings in the ends and. curved slots 35 in theflanges to limit the movement of the sides'and serve to hold said sidesin anypositioii to which they may be adjusted .by tightening the nuts onthe bolts. By making the hopper in this manner, so that either of itssides may be lowered, the shoveling oi. the material lroni either sideof the machine into the hopper is greatly facilitated.

Nowater is introduced into the lorward end ol the trough or that partwhich is beneath the hopper, so that the materials are lirst mixed dry.'lhey are then dampened the ('lesircd amountby water supplied -lrom thewater-jaeket ol the engine through a pipe 36 leading there'lroni, saidpipe extending downward lrom the upper end oi" the enginecylinder to thetop ol" the trough, thence along the trough past the hopper,'and inwardto the opening in the top o'l said trough, where. it is provided with anend portion 37, extending along said edge part way to 'the rear end olthe trough and which end portion is pciloratcd along ilslower side toallow the water to escape in small streams.

Having thus l'nlly described the. invention, what we claim is 1. ln ainixing-niaehine, the combination with a supporting-l'rame, ol a troughsecured to said lrame, mixing and convey ng arms in said trough, meanslor actuating said arms, and a hopper consisting ol' ends secured to thetrough and provided with o )enings-and sides hinged at their lower edgesto the troughainl lormed with inwardly-extending end llangeshavingcurved slots, and bolts extending through the openings in the ends andthe slots in the llangcs.

)8 mixed, a shaft in said receptacle, and

'means-lor.actuating said shaft, oi a series ol agitatii'igmr-ms on saidshalt consisting of a sleeve portion adapted to be secured to the shaft,a shank portion extending outward from said sleeve, a head, a shankportion on the head, tcctlron, the adjacent sides of the shanks adaptedto interlock and means for securing the shanks together."

3. in a i'nixing-l'nachinc, the combination with a receptacle withinwhich the material is mixed, a'shalt, in said receptacle, and means loractuating said shalt, ola series ol' agitating-arms secured on saidshalt each consisting ol a sleeve )ortion, a shank portion 'l'ormedintegral with the sleeve and provided with parallel l ongitudinalgrooves in one lace, and a hole, a rib or tooth in each groove, a headportion ,;a shank on said head )rovided with a longitudinal slot, twoparallel rows ol teeth on saidshank to engage the grooves and teeth onthe other shank portion, and a bolt extending through the said hole andslot. v

4. 'ln a concrete-mixer, thecombination with a suitablesupportii'ig-lrame supported upon wheels, ol a trough secured to thelrame and provided with closed ends and open at,its top, angle-ironssecured to the trough along its edges, a hopper (-Ionsisting olstationary ends secured to the trough and sides hinged to the angle-ironat their lower edges, .llanges on said sides havingeurved slots, boltsextending through said slots and ends, bearings itttllfi ends of thetrough, a shalt in said bearings, agitating and conveying arms on saidshalt, a gear on the lorward end ol said shalt, a motor, a gear on themotor-shalt engaging the other gear, a door in the rear end ol'thetrough hinged thereto at its 11 iper edge, a lever pivoted to the lrame,a link pivoted at one end. to the door and at its opposite end to thelever intermediate its ends, a catch on the lever to engage the upperedge oltlie end wall ol the trough, and a water-pipe extending past thehopper and provided with a perlorated end porlion'extendinglongitudinally within the open top o! the trough rearwardly lromthehoppcr.

ln testimony whereol we allix our signatures in presence ol twowitnesses.

JOHN l). KlCNlSllhh. CLARENCE LOWRY. Witnesses:

( r'ro l BA irri IE1), ANNA M. Dorm.

